Marissa Long, MAOB, PSY.D.
NPI 1396047056 · Clinical Psychologist · Claremont, CA
Marissa Long, MAOB, PSY.D. is a Clinical Psychologist provider in Claremont, CA (NPI 1396047056).
Provider details
- NPI number
- 1396047056
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- MAOB, PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSB35507 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-11-30
- Last updated
- 2010-11-30
Frequently asked questions
- What is Marissa Long's NPI number?
- Marissa Long's National Provider Identifier (NPI) is 1396047056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Long's specialty?
- Marissa Long is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Marissa Long located?
- Marissa Long's practice location on file with NPPES is 250 W 1st St, Claremont, CA 91711-4736.
- What is Marissa Long's phone number?
- The practice phone number listed in the NPPES registry for Marissa Long is (909) 624-1997.
- Is Marissa Long's NPI active?
- Yes — Marissa Long's NPI (1396047056) is active in the NPPES registry as of the last update on 2010-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.